Controlling means for transmission-gearing.



01 W.YPARKER.

CONTROLLING MEANS FOR TRANSMISSION GEARING. APPLICATION FILED JUNE 11,1910.

983,249; Patented Jan. 31, 1911.

3 SHEETS-SHEET 1.

INVENTOR THE N oooooooo 2125 cm, WASHINGTON. 0, c1

WITNESSES:

0. W. PARKER.

CONTROLLING MEANS FOR TRANSMISSION GEARING.

APPLICATION FILED JUNE 11, 1910.

Patented Jan. 31, 1911.

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WITNESSES: v INVENTOR .446 BY. A ATORNEY 7H5 MORRIS PETERS ca.,wnsumcrorv, n c.

ilNiTEl) STATES PATENT @FFTQE.

CLARK W. PARKER, OF SPRINGFIELD, ll'l'ASSACI-IUSETTS, ASSIGNOR T0PARKER. TRANS- MISSION AIND APPLIANCE COMPANY, PORATION OFMASSACHUSETTS.

OF SPRINGFIELD, MASSACHUSETTS, A COR- CONTROLLING MEANS FORTRANSMISSION-GEARING.

Specification of Letters Patent.

Patented Jan. 31, 19311.

Original application filed February 24, 1910, Serial No. 545,563.Divided and this application filed June 11,

To all whom it may concern:

citizen of the United States of America, and a resident of Springfield,county of Hampden, and State of Massachusetts, have invented certain newand useful Improvements in Controlling Means for TransmissionGearing, ofwhich the following is a specification, reference being had to theaccompanying drawings, forming a part thereof.

Hy invention relates to improvements in operating and controllingmechanism, and particularly to mechanism adapted to be employed foroperating and controlling transmission gearing for motor vehicles. Inthis class of mechanism a plurality of clutches are employed forconnecting the driving and driven element-s in different drivingrelation, and it is desirable that a single operating elementbe employedfor operating the said clutches selectively. in accordance with mypresent invention 1 employ such a signal operating lever, and inconnection therewith I arrange a plurality of operating arms to beselectively engaged thereby and moved therewith at the will of theoperator. The means for selectively determining which of the operatingarms is to be connected at the time to the controlling lever, comprisesa pivoted hand piece carried by the lever in a convenient position to begrasped by the operator in handling the lever, and I provide a movablestop adapted in one position to limit the movement of the hand piece,and in another position to permit the hand piece to move a greaterextent whereby the proper position of the hand piece may be determinedreadily and accurately in the operation of the device. The stop isconveniently provided with a thumb piece or other part in a convenientposition to be manipulated by the operator in grasping the lever.

The objects of my invention are to utilize the forward and rearwardmovements of a controlling and operating lever to operate clutch orsimilar mechanism selectively without requiring in addition thereto,lateral movements of the lever such as is common in the selective typeof controlling mechanism employed at the present time; to provide ameans which shall be easy to opy erate and as nearly as possible foolproof, Be it known that I, CLARK TV. Penman, a

and generally, to improve and simplify con trolling mechanism for thegeneral purpose a foresaid.

My invention also consists in certain novel details of construction andcombinations of parts, all as will be fully set forth in the followingspecification, and in order that my invention may be thoroughlyunderstood, I will now proceed to describe an embodiment thereof. havingreference to the accompanying drawings illustrating the same, and willthen point out the novel features in claims.

Figure 1 is a view in central longitudinal section through atransmission gearing with which my improved controlling means is adaptedto be employed, and showing a por tion of the connecting elements whichconnect the said controlling means therewith. Fig. 2 is a view incentral vertical transverse section therethrough and through acontrolling means constructed in accordance with my invention, the planeof section being substantially upon the line 2-2 of Fig. 1. Fig. 3 is a.detail view in horizontal transverse section through the transmissiongearing, the same being taken upon the line 3-8 of Fig. 2. Figs. at andare views in vertical section of the controlling means, the same beingtaken respectively upon the lines 4-et and 5-5 of Fig. 2. Figs. 6, 7,and 8 are detail views respectively in side elevation of the severalarms which coact with the controlling lever.

The present application is a division of a copending application filedby me on the 2eth of February, 1910, and serially numbered 545,568, inwhich the details of a complete transmission gearing are fully shown anddescribed. The controlling device claimed herein is shown in detail inthe said original application, and for convenience of reference I willemploy in the present specification the same reference numerals as areemployed in the original application, and specific reference is herebymade to the said original application for a type of transmission gearingwith which my improved controlling means is particularly adapted to beemployed.

The main operating member of the controlling means is a lever 39 mountedfast upon a sleeve 54 and arranged to rock, with the said sleeve, aboutan axis concentric to the sleeve. Disposed in proximity to the said mainoperating or controlling lever 39 are three operating arms 5859 60, thearm 58 being secured upona sleeve which surrounds the said sleeve 5l,the arm 59 being secured to a sleeve 56 disposed within the said sleeve54, and the arm 60 being secured to rock shaft 57 disposed within thesaid sleeve 56. The various sleeves and shafts have bearings withrespect to each other, and the outer sleeve 55 has bearings in a tubularextension of the main casing 22, as will be well understood by referenceto Fig. 9 of the drawings. Each of the arms 5S59 6O is so constructedand arranged that the controlling lever 39 may be moved independentlythereof and without thereby imparting any movement thereto, but the saidlever is provided with lateral studs or projections arranged, undercertain conditions, to co-act with any one of the said arms at the willof the operator. These studs or projections (52433 are carried by aslide 61 which is mounted upon the lever 39. This slide is secured tothe said lever by means of screws 65 which pass through slotted openingsin the said slide whereby the slide may move longitudinally with respectto the said lever upon the front face thereof. A guide stem 66 is alsoprovided, the same being guided in a suitable extension of the lever 89,and a spring 71 normally tends to depress the said guide and force it toits lowermost position. This slide is operated by means of a hand piece67 pivotally connected to the lever near the upper end thereof, theconnections between the two parts including an arm 68 carried by thehand piece, a rocking lever 70 pivoted to the controlling lever 39 andhaving one of its arms in engagement with the said slide, and a link 69pivoted to the other arm of the said lever and to the outer extremity ofthe arm 68. By inspection of the drawings it will be readily seen thatif the hand piece (3? be depressed the slide 61 will be lifted, while onthe other hand, if pressure upon the hand piece be relaxed, the spring71 will operate to lower the said slide and return the latch 70 to itsnormal. outer po sition.

Each of the levers 58-59-430 has a bifurcated upper end forming jaws forcoengagement with the one or the other of the abutments 62 63 carried bythe slide. The jaws are arranged upon different levels, the jaws of thelever 59 being arranged upon such a level as to receive the abutment 62when the slide is in its lowermost position. At this time the abutment63 is received within a recessed portion Ge of the operating arm orlever 58 so that the said lever 59 will be free to oscillate withoutimparting any corresponding movement to the said operating lever Theengagement of the stud or abutment (32 with the operating arm or lever59 will, however, at such times compel movements of the said operatingarm or lever in exact accordance with the movement of the controllinglever 39,-in other words, the two parts will be locked together and sowill move together. If the hand piece 67 be depressed the requireddistance the slide 61 will be lifted to a point wherein the abutment .62will be freed from engagement with the lever 59, and the abutment (33will engage the jaws of the lever 58. When this occurs the movements ofthe con trolling lever 39 will. be imparted to the op crating arm orlever 58 instead of to the operating arm or lever 59, the latterremaining stationary. The movement of the slide 61 for this purpose islimited by means of a stop 72 with which the hand piece is arranged toengage after it has been moved a su'liicient distance to properly adjustthe said slide (31. This stop 72 is carried by a rod 71:3 mounted toslide longitudinally in the upper extremity of the controlling lever 39.The said rod is provided at its upper extremity with a thumb piece 74which projects beyond the upper extremity of the lever, and a spring 75bears against the under side of this thumb piece thereby exerting anupward force upon the rod so as to maintain the stop 72 in its properposition with respect to the hand piece 67. The stop 72 projects,however, through a slotted opening in the side of the controlling lever,whereby it may be moved longitudinally with the rod. By depressing thethumb piece T l the stop T2 may be moved out of register with theportion of the hand piece 67 adapted to engage it, thereby permitting afurther inward movement of the latch as will be well understood. Suchfurther inward movement will lift the slide 61 to an extentsufficient tocarry the stud or abutment 63 out of register with the lever 58 and tocarry the stud or abutment 62 into register with the jaws at the upperend of the operating arm or lever 60. The result of this will be thatwhen the parts are so adjusted, rocking movements of the controllinglever 39 will be imparted to the lever 60, while the lovers 5S and 59will remain stationary. The operation then of this controlling lever isas follows: First, if rocking movements be imparted thereto withouttouching the hand piece 67 at all, the rocking arm or lever 59 will bemoved therewith, and the rocking arms or levers 58 and 60 will remain atrest; second, if the hand piece be depressed without the thumb piecebeing touched, rocking movements imparted to the controlling lever 39will be partaken of by the operating arm or lever 58, and the operatingargis or levers 59 will remain stationary, while third, if the thumbpiece 74: be depressed. at the same time as the hand piece (57 is movedinward, rocking movements imparted to the controlling lever 39 will bepartaken of by the operating arm or lever 60, while the operating arms5-3-59 will remain at rest.

For the purpose of preventing accidental movements of those operatingarms or levers which are not directly comiected at the time to thecontrolling lever. I have provided stops in the form of spring tongues76 carried by the said arms or levers. such as will normally engageportions stationary with the casing. The movement of either of the studsor abutments ($263 into engagement with the several levers respectivelywill by engagement with these spring tongues cause them to be depressedto an QXlGllt sufficient to disengage them from the parts with whichthey are in normal engagement and so to permit their levers to move.

I have also provided a guiding means such as will act as a lock toprevent movements of the slide when the lever 39 is in any but a neutralposition, such locking means comprising a stationary guide piece 77having a slot 78 therein for engagement with a guiding stud 79 upon theslide (31. The slot 78 is of such a form as to permit vertical movementsof the slide 61 only when the lever 39 is in its neutral position and topermit oscillating or rocking movements of the lever 39 only when theslide is at one of its three predetermined levels; furthermore, the slotis so arranged as only to permit the rocking movements of the lever 39in the proper direction. In the particular construction shown therocking lever may move in either direction when the slide is in itslowermost position, but when the slide in either of its two upperpositions, then a rocking movement of the lever is permitted in onedirection only. This specific arrangement is, of course, for the purposeof meeting specific requirements of the particular transmission gearingemployed and will be varied in ac cordance with the construction of thetransmission gearing.

The foregoing form of controlling mechanism may be applied to thecontrol and operation of transmission gearing of various forms andconstructions. As before stated the transmission gearing for which thiscontrolling means was particularly designed, shown and described indetail in the original. application of which this application is adivisional. In brief, this transmission gearing includes a driving shaft20 and driven shaft 21 disposed axially in line with each other andsuitably journaled in the casing 22, change speed gearing and aplurality of clutches being employed for connecting these two shafts indifferent driving relation. The clutches are operated by a plurality ofshipper rods 4:G-4l7-484-9, the said shipper rods being arranged toslide longitudinally in suitable bearings in the casing. in Fig. l theshipper rod -l-t5 is seen in side elevation and is shown as providedwith arms at2-el-2, the lower ends of which engage elements of clutches31 and 35, the former being arranged to connect the driving and drivenshafts in direct connection, ant the latter to connect the driving anddriven shafts in connection through gearing including a pinion 26mounted fast upon the drive shaft .20, a spur gear 27 mounted fast uponan intermediate shaft 23, a smaller spur gear 33 disposed upon the shaft223, and a pinion 1-H of somewhat larger diameter than the pinion 2t;mounted loosely upon the driven shaft 21. The members of the clutches 3135 carried by the arms 4:2l1 are arranged to slide upon the shaft 21,but are maintained against relative rotation with respect thereto bymeans of longitudinal splines or keys. The said clutch elements are,moreover, spring pressed in opposite directions by means of a spring 80,shouldered portions 8+ of the said clutch elements tending to limit theoutward movement of the said members with respect to the arms :42. Thereare other clutches, elements of which are carried by the several shipperrods. one of the said clutches appearing at 32 in Fig. 1, an arm 43being mounted upon the shippenrod 47 for carrying the same. The severalshipper rods are provided at their forward ends with forked heads forengagement with the upper ends of rocker arms 50 51-5253 respec tively,the said arm 50 engaging the shipper rod 16, the said arm 51 engagingthe shipper rod 47, the said arm engaging the shipper rod t8, and thesaid arm 53 engaging the shipper rod 49. The arm 50 is secured to, andcz'irried by, the sleeve 57h. and hence is rigidly secured to, andpartakes of, the movements of the controlling lever 39. The arms 515253are rigidly secured to the sleeves and the shaft 57 respectively,whereby they are in permanent engagement with the operating levers5859(50 respectively.

It will be understood that the various clutches throughout thetransmision gearing are to be operated selectively at the will of theoperator, any one of them being cou pled with either of the clutches3133 upon the driving and driven shafts, and it will be readilyunderstood from the foregoing that any one of the said clutches such asare operated respectively by the movements of the various shipper rods4e7&8-49 in combination with the shipper rod 46, may be so operated bythe proper manipulation of the controlling lever aforesaid. In thebackward or forward movement of this controlling lever the shipper rod46 will be operated in any event, and any one of the other shipper rodswill be operated therewith in accordance with the position of the handpiece 67 If the hand piece is not touched, then the shipper rod 48,through its connection with the operating lever 59, will be moved withthe shipper rod l6; on the other hand, if the hand piece 67 be depressedto the limit of the movement allowed by the stop 72, then the shipperrod i7, through its connection with the operating arm or lever 58, willbe coupled with the shipper rod 46 and moved therewith, and again, ifthe hand piece 67 be depressed to the limit of the movement allowedafter the stop 72 has been moved out of the way by depression of thethumb piece 74, then the shipper rod 49 will, through its connectionwith the operating arm or lever 60, be coupled with the shipper rod 46and moved therewith.

lVhat I claim is:

l. Controlling and operating means comprising a hand lever, a pluralityof operating levers arranged for connection therewith, an elementcarried by the said hand lever and movable with respect thereto, thesaid element being arranged for selective cooperation with the saidoperating levers in accordance with its position upon the hand levercarrying it, hand operating means for moving the said element, and amovable stop also carried by the said hand lever for cooperating withthe said element to limit the movement thereof.

2. Controlling and operating means comprising a hand lever, a pivotedhand piece carried thereby, a movable stop for cooperating with the saidhand piece to limit the movement thereof, a plurality of operatinglevers, and means connected with the said hand piece for selectivelyconnecting the said operating levers with the" said hand lever.

3. Controlling means comprising a hand lever, a plurality of operatinglevers arranged for connection therewith, an element carried by saidhand lever and movable with respect thereto for selective co-action withthe said operating levers in accordance with its position upon the handlever carrying it, a pivoted hand piece upon the said lever for movingthe said element from one position to another, a movable stop carried bythe said hand lever arranged when in one position to limit the movementof the said element, and a thumb piece for operating the said step,mounted in the said hand :3

lever and extendin above the upper extremity thereof.

4E. In transmision gearing, the combination with a plurality of clutchactuating elements, of a controlling lever therefor di rectly connectedwith one of them, a plurality of operating levers connected with theother said clutch operating elements, means for selectively connectingthe said operating levers with the said controlling lever com prising apart carried by the said controller, and movable thereon into engagementwith the said operating levers respectively, and a movable stop carriedby the said controlling lever and arranged in one position to limit themovement of the said movable part.

CLARK W. PARKER.

lVitnesses FRANK E. LADD, Ni MAN C. PARKER.

